Cervelo Aspero GRX820 (2025)

The 2025 Cervelo Aspero Gravel Bike with the GRX RX820 groupset is a cutting-edge evolution of the original Aspero, designed to meet the demands of modern gravel riding while staying true to its fast and versatile roots. Here's a breakdown of the key updates and specifications:

Key Updates:

• Threaded Bottom Bracket: The T47a threaded bottom bracket, which debuted on the R5-CX, is now featured in the Aspero. This design is both durable and user-friendly, combining the stiffness of the BBRight system with the convenience of a threaded interface, making it easier for riders to service.

• Universal Derailleur Hanger (UDH): Compatibility with SRAM’s UDH allows the Aspero to be future-proof, supporting current and upcoming SRAM Transmission drivetrains. This feature ensures versatility, especially for riders who appreciate mixing and matching components.

• Improved Aerodynamics: The Aspero's updated design focuses on aerodynamic efficiency, not just for speed but for energy conservation over long rides. The small aerodynamic gains translate into energy savings, comparable to needing one less energy gel on a windy day.

• Lowered Seat Stays and Reduced Front-End Stiffness: These adjustments enhance comfort by increasing compliance and reducing fatigue during long races. The lowered seat stays also contribute to better mud clearance, inspired by the R5-CX and lessons from challenging gravel races like Unbound 2023.

• Internal Cable Routing: The Aspero adopts the internal cable routing system used in other Cervelo models like the R5 and Soloist, offering a sleek, race-ready appearance. The bike is compatible with various bearing caps and stems, allowing customization for a fully integrated look.

Specifications:

• Fork: Cervélo All-Carbon, Tapered Aspero Fork
• Headset: FSA IS2 1-1/4 x 1-1/2
• Seatpost: Cervélo SP19 Carbon 27.2
• Shifters/Brakes: Shimano GRX RX820, 12 speed (both left and right)
• Derailleurs: Shimano GRX RX820, 12 speed (both front and rear)
• Brake Calipers: Shimano GRX RX820
• Brake Rotors: Shimano CL800 Centerlock
• Thru Axles: Cervélo Aero Thru-Axles, 12x100 (Front) / 142 (Rear)
• Crankset: Shimano GRX 820, 48/31T, 12 Speed
• Bottom Bracket: FSA, T47 BBright, 24mm spindle
• Handlebar: Cervélo AB09 Carbon, 31.8mm clamp, 16-degree flare
• Stem: Cervélo ST36 Alloy, with Cable Management
• Saddle: Prologo Dimension NDR T4.0
• Cassette: Shimano HG710, 11-36, 12 speed
• Chain: Shimano M8100, 12 speed
• Wheelset: Fulcrum Rapid Red 300, 12x100 (Front) / 142 (Rear), 24H, 24mm IW, HG freehub, centerlock, tubeless compatible
• Tires: WTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x40c
• Accessories: Smartpak 400A Top Tube Storage Bag

This bike is an excellent choice for gravel riders who demand performance, comfort, and future-proofing in their equipment. The thoughtful updates and top-notch components ensure that the Aspero remains a leader in the gravel bike market.